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In 2016 USGS released an assessment of the resources of the Mancos Shale of the Piceance Basin in Colorado and Utah, "a total of assessed technically recoverable mean resources of 74 million barrels of shale oil, 66.3 trillion cubic feet of gas, and 45 million barrels of natural gas liquids."
The USGS also runs or supports several regional monitoring networks in the United States under the umbrella of the Advanced National Seismic System (ANSS). [12] The USGS informs authorities, emergency responders, the media, and the public, both domestic and worldwide, about significant earthquakes.
Aquifers of the United States Withdrawal rates from the Ogallala Aquifer.. This is a list of some aquifers in the United States.. Map of major US aquifers by rock type. An aquifer is a geologic formation, a group of formations, or a part of a formation that contains sufficient saturated permeable material to yield significant quantities of water to groundwater wells and springs.
1909 – Colorado State Geological Survey publishes first geological map and report. 1916 – The name is changed to the Colorado Geological Survey. 1925 – The Colorado Geological Survey goes out of existence after publishing 31 Bulletins on various aspects of the geology and mineral resources (including oil shale) of Colorado.
Drilling in the Wattenberg Gas Field north of Denver. Oil and gas-producing formations in the Denver Basin. The basin itself forms a petroleum province. Oil and gas have been produced from the Denver Basin since the discovery in 1901 of oil in fractured Pierre Shale at the McKenzie Well, part of the Boulder oil field in Boulder County.
Areas of oil shale of the Green River Formation, Colorado, Utah, and Wyoming (USGS) Black shales similar to the eastern shales are widely distributed west of the Mississippi River. These include some, such as the Woodford Shale of Oklahoma , which are near-stratigraphic equivalents to the Devonian/Mississippian shales of the eastern US.
The Ogallala Aquifer (oh-gə-LAH-lə) is a shallow water table aquifer surrounded by sand, silt, clay, and gravel located beneath the Great Plains in the United States. As one of the world's largest aquifers, it underlies an area of approximately 174,000 sq mi (450,000 km 2) in portions of eight states (South Dakota, Nebraska, Wyoming, Colorado, Kansas, Oklahoma, New Mexico, and Texas). [1]
Drilling in the Wattenberg Gas Field north of Denver, 2005. Although numerous wells had drilled through the Wattenberg Field over the decades, and many drillers and wellsite geologists noticed gas “shows” (indications) in the "J" Sandstone and other strata, the "J" Sandstone and other gas-bearing formations had permeability too low to yield gas in commercial quantities.